That's a hard choice. If they revived Banjo-Kazooie and it was a 3D platformer, then it would be hard to say. If it's anything else, I think Yooka-Laylee would win.
Kinda jumping the gun here with this one, no? We don't know exactly how the humor and level design, controls, and everything else will play out. For all we know we could say 'yay' to a B/K game and Y/L could blow it out of the water and we would all forget about B/K. not unlike Bayonetta did to me for Devil May Cry. Loved DMC 1-3 but then played Bayonetta and can't even stand playing any DMC for 15 minutes now.